Electric-lamp-socket casing.



' v H. J. MOREY. l

ELECTRIC LAMP SOCKET CASING.`

APPLlcA-TloN H LED APR. le, 19M.

L9w- Patenteduly 18,1916.

HAB/BY J. 1VIOREY, 0F SYRACU'SE, NEW YOBK ELECTRIC-'LAMP-sooxn'rCasin-G.

Specification of Letters atent.

Patented July is, 191e.

Application ined Aiirii 1c, .1914. serial No. 832,292.

T all whom t may concern.' n

Beit known that I, HARRY J. MOREY, a

citizen of the United States, residing at Syracuse, Onondaga county, NewYork f State, have invented certain new and useful Improvements inElectric-Lamp-Socket Cas- 'ngs, of which the following is a specifica=vtion.

This invention relates to casings for electric lamp sockets and thelike, and has particular reference to 'improvements in the cap portionof the casing.

u The principal object of my invention 1s to eliminate insulating jointsbetween the. socket and the fixture to which the same is attached and isespecially suitable foruse on bath room fixtures and similar locations.

The above and other objects and the novel features of my invention willbe apparent from the following'description taken in confI nection withthe drawing, in which,

Figure 1 is a side elevation showing a socket embodying my 'invention asit appears when attached to a xture; Fig. 2 is a plan view of the capportion of a' casing embodying my invention; Fig. 3 is a bottom planview of the same; Fig. 4 is a cross section of the capl embodying myinvention, taken on the line,4-4 of Fig. 2; and Fig. 5 is a crosssection of the cap taken on the line 5 5 of Fig. 2, showing the upperend of the casing asl it appears when interlockedv with the cap, andshowing the connectionv of the cap to the fixture. i

Referring to the drawing, the socket, the lamp attached thereto, andtheginclosing casing for the socket are shown as supportedn from theside wall 10 by means of a fixture 11 which consists in the present caseof a curved piece of brass tubing which is provided with threads 12 atits outer end. The casing for the socket 8 and insulating'lining 9carrying the switching mechanism and lamp terminals of any preferreddesign Con' sists of a cap to be more fully described and a tubularshell 14 of the usual construction which has a slot (not shown)extendingV downwardly from its upper end to receive the spindle carryingthe key 15, by means of 'which the switching mechanism on the intralopening 40 provided with threads 41 to terior is operated. The socket 8on the interior has lamp terminals to receive and hold an incandescentlamp 16. At its upper edge the shell 14 has a plurality of corrugations17 and-also has horizontaland vertical latching lips, a hnizontal'llatching -lip being i shown at 18.

. The construction of the shell 1s not .new and is substantially likethat shown y1n the patent to G. W. Goodrdge, No.

The cap comprises a block 20 of insulating material, such as porcelain,which is provided at its center 'with an opening 21 flaring downwardlyand lat opposite sides of the center has recesses 22 to receive theangular lugs which are integrally connected tola ring 24, which' liasalarge number of symmetrically arra nged rectangular openings 25. The

openings 25 are closed on the outside by a brass ring 26 which has anarrow interior flange 27 `fitting and supported by a shoulder 28 on thering 24 and has its `lower edge spun inwardly as at 29 under the loweredge of the inner ring 24. The inner and outer rings telescope over theupper edge of ,the shell 14 and the latching lips on `the latter engagein the openings 25 of the inner ring n 24 and detachably lock the twoparts together. It will be understood, however, that my ,invention isnot limited to the particular latching means shown and any desirabletypeof interlocking device between the cap and shell may `be employed,one of the readily detachable type being preferable.

The interlocking means herein shown is fully described in the patent toGoodridge above referred to.

The insulating block 20 is notchedas at 30 to receive the end of theouter'ring 26 and has an overhanging part 31 which is of greaterdiameter than the attaching ring and extends downwardly and overlaps thevupper end thereof. .Each of the integral se- The screwsI 34 extendthroughopenings in the horizontal parts 33 of the lugs and throughpartitions 35 into recesses.

36 opening at the top of the block 20. The threaded screws are held inplace r'by nuts 37 bearing on the partition walls 35 and the cavities 36are*v then filled with suitable in sulatingmateral 38 to cover the metalparts.

A brass sleeve or nipple 39 having a cenfit the threads 12 on the end ofthe brass tube 11 has integral ears 42 on diametrically opposite sidesthereof at the lower edge, provided with threaded openings to receivethe screws 43 which hold the sleeve 39 in 'place' on the block andcQ-axial with the open-A cap may be attached to` a socket shell, saiding 21` of the block. The screws 43 are /means comprising a ring havinglugs for atpassed through openings 44 from the under side of the blockand the heads 45 of the screws 'rest on shoulders at the,.bottom of thescrew cavities 44.- In order .to lock the l sleeve in placel on the endof the tube'll, I

.tends through the wall of the sleeve.

ears 42 andthel lower end of the nipple 39 provide a pointed setscrew 46which ex,-

The

are counter sunky so that the ears will be disposed flush with the topof the block 20,-

Itwill be seen that I have provided acasing' for alamp socket or thelike which may be attached to a metal-support oriother fixture and stillbe completelyinsulated-'therefrom, the block or separating Amember 20constituting an insulating 'barrierb'etween the metal parts surroundingthe lamp socket and the nipple "by means vof which the shell is attachedto the. fixture. The usual insulating lining for the shell portion 14ofi the casingmay or may not be eliminated as pre-v ferred, but theconstruction of the capl does away with the insulating lining for thecap..

The downwardly flaring opening` 21 leaves sucient room `for bends 1n theincoming wires which are attached tothe-terminalson the lamp socket. 4While Lhave shown anddescribed. my in` vention in detail, I -do not wishto be limited tothe exact construction vshown as it is clear thatnumerous modifications may be made Without departing from 'the spiritofthe invention.

the combination of a block of insulatingv material having an openingextending centrally therethrough, and means whereby the taching the sameto said block, and a second lring carried by the `first mentioned ringand providedwithV means for-interlocking with portions on the socketshell.

2. A cap oi''v the class described compri@ ing the combination of ablockof insulating material having an opening extending centrallytherethrough and also having recesses in' the lower side thereof onopposite sides of i said 'opening7 `and means whereby the 'cap may beattached to a socket shell comprising `a. ring having'lugs secured insaidrecesses in the block, anda second ring lcarried' on the inner sideof said first mentionedring and havingl a series ofv recessesI adaptedto receive portionsl of thesocket Ashellto secure thecaptothe shell. l ll l 3. 'A cap of the class described-comprising a substantiallycylindrical body of in- 'sulating material Ahaving a central openingextending. therethrough, a 'nippley'secured to the top of ,said -bodycoaxially with said opening,I and a device whereby the cap may beattached to a socket shell', said devicehaving means uniting the same tothe body of insulating material, said'uniting means be- Aing locatedwithin the marginof said body.

4.3 AI cap of the clas's'described coinpris.- ing a bodyofi'nsulatingmaterial having a centrally disposed opening daring towardthe lower side, a nipple secured to said body above the opening andcoaxiallytherewith,

and means on the lower side of saidbody for attaching the cap to asocket shell.

f In testimony whereof I affix my signature in presence oftwo Witnesses.

V 1 'HARRY J..MOREY. Witnesses: A I

J. M..Bizooiis, J.. S.' CRo'ssLEY.'

